Huawei UPS2000-G-6KRTLL - Performing EPO

NO TE
● When one UPS in the parallel system is shut down while another UPS is still working,
the UPS that has been shut down has no output.
● To shut down a UPS without removing it from the system, perform only step 1.
Transferring the Parallel System to Bypass Mode
Perform the shutdown operation on each UPS in the parallel system. All UPSs shut
down the inverters and transfer to bypass mode.
Transferring the Parallel System to No Output State
Step 1 Shut down loads.
Step 2 Perform the shutdown operation on each UPS in the parallel system. All UPSs shut
down the inverters and transfer to bypass mode.
Step 3 Switch
o the AC input circuit breakers K
m
1 and K
m
2, general AC input circuit
breaker K
m
, AC output circuit breakers Q1 and Q2, and general AC output circuit
breaker Q for the UPS system. After all indicators turn
o and fans stop, the UPSs
shut down, and the loads power o.
Step 4 Switch o the external battery circuit breaker for each UPS or the general battery
circuit breaker (when all UPSs share a battery string). If no external battery circuit
breaker is
congured, disconnect battery power cables from each UPS.
----End
5.3.3 Performing EPO
Turn on the EPO switches (provided by the customer). The UPSs enter the EPO
state. That is, the UPSs shut down the inverters, and do not transfer to bypass
mode.
UPS2000-G-6KRTLL
User Manual 5 Operations
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 105